Means for controlling the delivery of liquids



Feb. 2 ,1926. 1,571,464

F. C. AUGUST MEANS FOR CONTROLLING THE DELIVERY OF LIQUIDS Filed July 5, 1923 3 Sheets-Sheet 1 Feb. 2 192s. 1,571,454

F. C. AUGUST MEANS FOR CONTROLLING THE DELIVERY OF LIQUIDS Filed'July :5, 1923 5 Sheets-Sheet 2 .p&

zaiaumx Feb. 2 1926. 1,571,464

F. c. AUGUST MEANS FOR CONTROLLING THE DELIVERY OF LIQUIDS Filed July s, 1923 3 Sheets- Sheet a UNITED STATES PATENT OFFICE.

FREDERECK CHARLES AUGUST, OF ENFIELD, ENGLAND.

IVIEANS FOR CONTROLLING THE DELIVERY OF LIQUIDS.

Application filed July 3, 1923.

T 0 all whom it may con cern Be it known that I, FREDERICK CHARLES AUGUST, of Brookleigh, St. Marks Road, Bush Hill Park, Enfield, Middlesex, Eng- 5 land, having invented certain new and useful ln'iprovements in Means for Controlling the Delivery of Liquids, do hereby declare that the following is a full, clear, and exact description of the same.

This invention relates to apparatus for controlling the delivery of liquid and more particularly to means for controlling the supply to, and delivery from, holders or tanks of milk or the like which is to be retained in such holders or tanks for a predetermined. period of time.

An object of the invention is to provide a means of control by which the liquid is automatically delivcred to several holders in succession and automatically discharged from such holders also in succession at the conclusion of predetermined periods.

In accordance with the invention the holders are each provided with inlet and discharge pipes, the inlet pipes of all the holders being connected with a valve box through which the liquid is fed, and which is fitted with valves operable in turn by a cam disc or the like, and the discharge pipes of all the holders being connected with another valve box also fitted with valves operable by another cam disc or the like, the cam discs or the like being so formed, and driven at such a speed, as to open in turn and maintain open for predetermined periods of time the valves of each valve box in such manner that the liquid. will be de livercd to the different holders in turn and will be discharged from such holders also in turn.

the holders.

As shown in Figs. 1 to 3, the apparatus includes a standard 1 on which are mounted two valve boxes 2, 8 located one adjacent to the upper and the other adjacentto the lower end of the standard.

On the valve Serial No. 649,204.

box which serves to contain the valves controlling the supply of milk to the holders are an inlet branch 4 by which the milk is fed to the valve box from the pasteurizer or other apparatus and a series of valve-controlled branches 5, 6, 7 by which the milk is led to the holders. On the valve box 3 servmg to contain the valves controlling the-discharge of milk from the holders are a discharge branch 8 and a series of valve-controlled branches 9, 10, 11. Each of these valve boxes 2, 3 in the embodiment illustrated, is fitted with three valves 12 or 13 uniformly spaced and arranged concentrically in relation to the axis of rotation of the controlling cam disc, said valves being urged towards their seatings by springs 14, the valves 12 being arranged as inlet valves controlling the branches 5, 6, 7 and the valves 13 being arranged as delivery valves controlling the branches 9, 10, 11. The valves 12, 13 are controlled by cam discs 16, 15 which are driven from a driving pulley 18 or the like, the cam disc 15 being driven from the reducing gearing 17, the shaft 19 and the dog clutch 20 or the like, and the cam disc 16 being driven through the shaft 19, bevel gearing 22 and dog clutch 21. The cam discs 15, 16 are provided with cam faces 23 each extending-in the embodiment illustratedover one-third of the periphery of the relative cam disc, said faces serving to actuate in turn all the valves 12 and all the valves 13.

Each of the dog clutches 20, 21 is arranged to permit relative movement between the relative cam disc and its carrying shaft so as to provide for substantially instantaneous opening of the valves by allowing sudden movement to an extent equal to the rise of the operating cam surface. The arrangement is illustrated in Figs. 5, 6 and 7 from which it will be observed that a tapered slot 24: is provided in each cam disc in which slot the driving dog may move freely within limits. In the embodiment illustrated this movement relatively to the dog is effected intermittently as indicated in Fig. 1 by means of a cam disc 25 mounted on a cam shaft 26 and actuating one end of a rocking lever 27 which lever supports at its opposite end a vertical rod or tappet 28 carrying at points adjacent to the cam discs 15, 16 pawls 29 adapted to engage notches 30 on the peripheral surfaces of the cam discs 15, 16. 110

Thus, as each notch 30* is brought into the range of movement of the. associated pawl 29 on the rotation of the cam disc 15 or 16 the pawl will act to move such cam disc angularly on its carrying shaft substantially instantaneously to an extent proportionate to the amount of rise A of the cam face 23 allowing thereby the rapid opening of the relative valve. It the cam discs 15 and 16 each rotate at the rate of one revolution every ninety minutes, the valves of each series will be opened and closed in turn every thirty minutes.

As indicated in the drawing, the valve boxes 2 and 3 are each detachably arranged and adapted to be clamped in position by hand clamps 31 to permit of easy removal for cleaning purposes.

The boxes 2 and 3 may be arranged in a vertical position as shown or may he ar ranged horizontally in which case some slight modification of the vtrip gear and so on is required.

The modus operandi is as tollowsz- Milk is supplied, say, from a pasteurizer to the b 'anch 4 of the inlet valve box 2 and through one of the valves 12 which has been opened to one, say 32, of the three tanks 32, 33 and 34: byway of the branch 5. hen this valve is closed by the spring let on the rotation of the cam disc 16 the next valve 12 is opened to supply milk to the next tank, say 33, by way of the branch 6. When the tank 33 has been filled, the milk is supplied by the third Valve 12 to the third tank 34 ly way of the branch 7. i The cam disc 15, controlling the delivery valves 13 has now moved into a position to open the valve controlling the discharge from the tank 32 and permitting the milk toflow through the discharge branch 8. then the tank 34 has been filled the cam disc 15 controlling the delivery valve 13 for the tank 33 has moved to permit the valve 13 controlling the discharge of milk from such tank to open, the tank 34being similarly emptied whilethe tank 32 is again being filled.

Naturally the number of tanks and the time for which the contents are held therein may be Varied.

1. In combination with a plurality of holders for containing liquid, each holder having an inlet and an outlet, a valve box having connections with the inlets of said holders, inlet valves fitted to said box controlling said connections, a valve box having connections with the outlets of said holders, delivery valves fitted to said second box controlling said last named connections, a valve actuator for actuating said inlet valves successively, a valve actuator for actuating said delivery valves successively, means for rotating said actuators, and intermittently operating means for imparting periodically a turning movement to each actuator.

2. In combination with a plurality of holders for containing liquid, each holder having an inlet and an outlet, inlet valves controlling said inlets, delivery valves controlling said outlets, a rotary cam for actuating said inlet valves successively, a rotary cam for actuating said delivery valves successively, means including clutch devices for imparting rotary movement to said cams, and intermittently operating means for imparting to said cams movement independent of the movement-imparted by said first mentioned means. i

3. In combination with a plurality of holders for containing liquid, each holder having an inlet and an outlet, inlet valves controlling said inlet-s,-deli vcry valves controlling said outlets, rotary cams foractuating said inlet valves and said outlet valves, each cam formed with a notch, means including clutch devices for imparting rotary movement to said cams, and means engageable with the notches in said cams for imparting intermittently to said cams movc ment independent of the movement impartcd by said clutch devices.

In testimony whereof I have signed my name- FREDERICK CHARLES AUGUST. 

